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137 results on '"Yuan, Jinsha"'

2. A Improved Algorithm of MAC Layer for Wireless and Power Line Cooperative Communication

Author

Liu, Yingchu, Chen, Zhixiong, Yuan, Jinsha, Liu, Ran, Tian, Xincheng, Kacprzyk, Janusz, Series Editor, Pal, Nikhil R., Advisory Editor, Bello Perez, Rafael, Advisory Editor, Corchado, Emilio S., Advisory Editor, Hagras, Hani, Advisory Editor, Kóczy, László T., Advisory Editor, Kreinovich, Vladik, Advisory Editor, Lin, Chin-Teng, Advisory Editor, Lu, Jie, Advisory Editor, Melin, Patricia, Advisory Editor, Nedjah, Nadia, Advisory Editor, Nguyen, Ngoc Thanh, Advisory Editor, Wang, Jun, Advisory Editor, Liu, Qi, editor, Mısır, Mustafa, editor, Wang, Xin, editor, and Liu, Weiping, editor

Published
2020
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3. Research on the MAC Layer Performance of Wireless and Power Line Parallel Communication

Author

Liu, Ran, Yuan, Jinsha, Chen, Zhixiong, Liu, Yingchu, Han, Dongsheng, Guo, Yihe, Kacprzyk, Janusz, Series Editor, Pal, Nikhil R., Advisory Editor, Bello Perez, Rafael, Advisory Editor, Corchado, Emilio S., Advisory Editor, Hagras, Hani, Advisory Editor, Kóczy, László T., Advisory Editor, Kreinovich, Vladik, Advisory Editor, Lin, Chin-Teng, Advisory Editor, Lu, Jie, Advisory Editor, Melin, Patricia, Advisory Editor, Nedjah, Nadia, Advisory Editor, Nguyen, Ngoc Thanh, Advisory Editor, Wang, Jun, Advisory Editor, Liu, Qi, editor, Mısır, Mustafa, editor, Wang, Xin, editor, and Liu, Weiping, editor

Published
2020
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4. Performance Analysis Based on MGF Fading Approximation in Hybrid Cooperative Communication

Author

Ye, Cong, Chen, Zhixiong, Yuan, Jinsha, Wang, Lijiao, Akan, Ozgur, Editorial Board Member, Bellavista, Paolo, Editorial Board Member, Cao, Jiannong, Editorial Board Member, Coulson, Geoffrey, Editorial Board Member, Dressler, Falko, Editorial Board Member, Ferrari, Domenico, Editorial Board Member, Gerla, Mario, Editorial Board Member, Kobayashi, Hisashi, Editorial Board Member, Palazzo, Sergio, Editorial Board Member, Sahni, Sartaj, Editorial Board Member, Shen, Xuemin (Sherman), Editorial Board Member, Stan, Mircea, Editorial Board Member, Xiaohua, Jia, Editorial Board Member, Zomaya, Albert Y., Editorial Board Member, Han, Shuai, editor, Ye, Liang, editor, and Meng, Weixiao, editor

Published
2019
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10. Study on Clamping Type DC Circuit Breaker with Short Fault Isolation Time and Low Energy Dissipation

Author

Zhao, Xibei, Li, Gen, Xu, Jianzhong, Yuan, Jinsha, Zhao, Xibei, Li, Gen, Xu, Jianzhong, and Yuan, Jinsha

Abstract

The development of DC grids faces challenges from DC fault protection. The conventional DC circuit breaker (DCCB) employs metal-oxide varistor (MOV) to isolate the faulted line, in which the fault isolation process is coupled with the energy dissipation process. In this study, a clamping type DCCB (CTCB) using internal capacitors to clamp the converter voltage is proposed. Thanks to the proposed configuration, fault isolation and energy dissipation are decoupled, resulting in a fast fault isolation and low energy dissipation compared to the conventional DCCB. The working principle of the proposed CTCB is presented and verified in a DC grid simulation model. A comparison is made with the traditional DCCB. The fault isolation time can be reduced by 34.5%. The dissipated energy can be reduced by 17.4%. The energy dissipation power can be reduced by 76.2%.

Published
2023

13. Personalized Recommendation Service System in E-Learning Using Web Intelligence

Author

Li, Xinye, Luo, Qi, Yuan, Jinsha, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Rangan, C. Pandu, editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Shi, Yong, editor, van Albada, Geert Dick, editor, Dongarra, Jack, editor, and Sloot, Peter M. A., editor

Published
2007
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14. A Transformer Condition Assessment System Based on Data Warehouse and Data Mining

Author

Li, Xueyu, Wu, Lizeng, Yuan, Jinsha, Kong, Yinghui, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Rangan, C. Pandu, editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Shi, Yong, editor, van Albada, Geert Dick, editor, Dongarra, Jack, editor, and Sloot, Peter M. A., editor

Published
2007
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15. Coordinated control of DC circuit breakers in multilink HVDC grid

Author

Zhao, Xibei, Xu, Jianzhong, Li, Gen, Yuan, Jinsha, and Liang, Jun

Abstract

High voltage DC grid is developing towards more terminals and larger transmission capacity, thus the requirements for DC circuit breakers (DCCB) will rise. The conventional methods only use the faulty line DCCB to withstand the fault stress, while this paper presents a coordination method of multiple DCCBs to protect the system. As many adjacent DCCBs are tripped to interrupt the fault current, the fault energy is shared, and the requirement for the faulty line DCCB is reduced. Moreover, the adjacent DCCBs are actively controlled to help system recovery. The primary protection, backup protection, and reclosing logic of multiple DCCB are studied. Simulation confirms that the proposed control reduces the energy dissipation requirement of faulty line DCCB by around 30–42 %, the required current rating for IGBTs is reduced, and the system recovery time reduced by 20–40 ms.

Published
2021

16. A clamping type DC circuit breaker with short fault isolation time and low energy dissipation

Author

Zhao, Xibei, Li, Gen, Xu, Jianzhong, and Yuan, Jinsha

Abstract

The development of DC grids faces challenges from DC fault protection. The conventional DC circuit breaker (DCCB) employs metal-oxide varistor (MOV) to isolate the faulted line, in which the fault isolation process is coupled with the energy dissipation process. In this study, a clamping type DCCB (CTCB) uses internal capacitors to clamp the converter voltage is proposed. Thanks to the proposed configuration, fault isolation and energy dissipation are decoupled, resulting in a fast fault isolation and low energy dissipation compared to the conventional DCCB. The working principle of the proposed CTCB is presented and verified in a DC grid simulation model. A comparison is made with the traditional DCCB. The fault isolation time can be reduced by 34.5 %. The dissipated energy can be reduced by 17.4 %. The energy dissipation power can be reduced by 76.2 %.

Published
2021

19. KinRob: An ontology based robot for solving kinematic problems.

Author

Zhang, Jiarong, Yuan, Jinsha, Xu, Jianing, Ban, Shuangshuang, Zan, Xinyu, and Zhang, Jin

Subjects
*PROBLEM solving, *ONTOLOGIES (Information retrieval), *KNOWLEDGE representation (Information theory), *ONTOLOGY, *LINGUISTIC analysis, *ROBOT kinematics
Abstract

Intelligent answering technology, which enables computers to solve problems automatically, is often used to develop tutorial systems, and has a wide range of application prospects. However, due to the lack of linguistic analysis and understanding methods, there are few researches on intelligent algorithms for solving kinematics problems. Developing such an algorithm is challenging, because solving kinematics problems is a complex task that includes text understanding, problem analysis, and automatic solution. To understand all these complexities involved in kinematics problems requires background knowledge. And only when an automatic solver contains a powerful internal knowledge representation system can it perform these tasks. We, thus, develop KinRob, an tutorial system for solving kinematics problems by combining neural network and ontology. Firstly, we propose an ontology for KinRob, which defines the knowledge of kinematics, and can help the robot understand a kinematics problem. Secondly, to match the text in natural language with the ontology, we propose a novel tagging scheme based on the kinematic problem understanding model in named entity recognition (NER). Finally, extensive experiments are conducted, and the experimental results show that the performance of the proposed method on a dataset of kinematic problems from authoritative sources better than the baseline algorithms. [ABSTRACT FROM AUTHOR]

Published
2022
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34. Removal of High Density Impulse Noise of Aerial Insulator Image

Author

Yuan Jinsha, Cui Kebin, Wang Ping, and Li Baoshu

Subjects
Engineering, Pixel, business.industry, Noise reduction, ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION, High density, Insulator (electricity), Impulse noise, Electric power transmission, Computer Science::Computer Vision and Pattern Recognition, Signal Processing, Computer vision, Artificial intelligence, business
Abstract

Aiming at the impulse noise generated in capturing the images of insulator on power lines, a denoising method based on peer groups is proposed. The center pixel variance

Published
2014

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